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Apple folks are also gearing up to push on the PGO front. We are primarily interested in using instrumentation, rather than sampling, to collect profile info. However, I suspect the way profile ended up being used in the various optimization and codegen passes would be largely similar. There is also some interests in pursuing profile directed specialization. But that can wait. I think it makes

> > After the basic profile-based transformations are working, I would like to > add new sources of profile. Mainly, I am thinking of implementing Auto > FDO. > For those who are not familiar with what autoFDO is -- Auto FDO is originally called Sample Based FDO. Its main author is Dehao Chen @google, and Robert Hundt is the one of the main pushers of technology in Google. The

...ple. Triage the existing instrumentation code and see what needs fixing. I'm starting this in the next week or so. What are your plans? Diego. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130617/df923727/attachment.html>